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kirill115 [55]
3 years ago
5

Type the correct answer in the box. A humming bird flits from flower to flower. Over a period of 10 minutes, it travels 40 meter

s. The average speed of the humming bird is m/min.
Biology
1 answer:
Alja [10]3 years ago
3 0
10/40 I think it whold be useful if we got more info on the humming bird sorry
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Classify each cell as haploid or diploid. 1. microspore:
Alex17521 [72]

Answer:

microspore: haploid

2. first polar body: haploid

3. spermatid: haploid

4. ovum: haploid

5. secondary oocyte: haploid

6. primary spermatocyte: diploid

7. microsporocyte: diploid

8. oogonium: diploid

9. megaspore: haploid

10. spermatogonium: diploid

Your answer

Explanation:

1. Microspore is a haploid spore produced by mostly ferns. They give rise to male gametophytes, which in turn produces sperm cell.

2. Polar body is one of the haploid cells that forms during the process of oogenesis (gametogenesis), specifically when the primary oocyte undergoes an unequal division.

3. A spermatid is an haploid cell that arises from the second meiotic division of the spermatogonia.

4. The ovum is the female gamete of most sexual reproducing organisms. It is also called the EGG CELL. It is haploid.

5. Secondary oocyte are haploid cells that results from the meiotic division of the primary oocyte.

6. Primary oocyte is the diploid cell that starts the meiotic division during oogenesis. It arises from the mitotic division of the oogonium.

7. The microsporocyte is the diploid cell that undergoes meiotic division to produce microspores in ferns and other land plants.

8. Oogonium are the diploid stem cells that initially starts the oogenesis process. It undergoes mitosis to form the primary oocyte, which divides meiotically till the ovum is formed.

9. Megaspore is a haploid spore that gives rise/germinates to the female gametophyte in ferns. The female gametophyte produces the haploid eggs.

10. Spermatogonium are undifferentiated stem cells that produces the sperm cells in males via the process of spermatogenesis. The spermatogonia is diploid in nature

5 0
3 years ago
Does this change in pulmonary blood pressure increase or decrease capillary filtration in the lungs? Explain.
Elza [17]

Answer:

Increase the capillary filtration

Explanation:

Complete question

Mrs. Helms was very upset with the news of her husband. condition. As the day progressed, she noticed that Mr. Helm's breathing was increasingly difficult. He could barely speak without losing his breath. Mrs. Helms called the nurse to her husband's, room. "My husband can't breathe! What is wrong? I thought he had a heart attack not a respiratory condition!" Nurse Nan auscultator the patient's chest listening to Mr. Helm's respirations, which were rapid and wet, producing or crackling sounds. Nurse Nan calmly informed Mrs. Helms, "I'm sorry. Your husband's condition is worsening. The damage to his heart it causing his respiratory problems." The left side of the heart receives blood from which part of the body? If the bicuspid (mitral) valve is not fully dosing, does pulmonary circulation increase, decrease, or not change? Does pulmonary blood pressure increase or decrease with left-sided heart failure? Does this change in pulmonary blood pressure increase or decrease capillary filtration in the lungs? Explain. How does change in pulmonary blood pressure and capillary filtration cause Mr. Helms' rales (wet breath sounds)? Why is Mr. Helms breathing rapidly?

Solution -

The condition of Mr. Helm signifies that the pulmonary pressure increases in the pulmonary arteries. This condition is known as pulmonary hypertension which commonly occurs when the left side of the heart stops functioning or it fails. The blood not pumped by the left heart is pumped back into the lungs thereby increasing the blood pressure. The heart do not get time to relax in this conditions due to continuous pumping back and fro.

7 0
3 years ago
Dana is the pitcher for her community baseball team. What force causes the baseball to change direction when it is hit by the ba
o-na [289]

Answer:

· The batter’s force on the ball as he misses.

8 0
3 years ago
Echinoderms _____. _____ Select one: a. have an exoskeleton of hard calcareous plates b. often use tube feet to move around in t
atroni [7]

Answer:

B. often use tube feet to move around in their environment

Explanation:

Tube feet are tiny tubular projections of echinoderms on the underside (oral side). They are a member of the echinoderm water vascular system.

Tubular feet are used for feeding, breathing and shifting. They are arranged around the sides, in grooves. They work by hydraulic pressure. They are used to transfer food in the centre to the oral mouth, and may stick to surfaces. Tube feet allow certain animals to stick and travel slowly to the ocean floor. for example starfish uses tube feet for the above functions.

Hence, the correct option is B.

4 0
4 years ago
What other types of molecules can be sorted by length, besides DNA?
Alenkasestr [34]

Answer:

Protein

Explanation:

Gel electrophoresis is a technique used to separate DNA fragments according to their size.

4 0
3 years ago
Read 2 more answers
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